With those three vessels operating and growing their crews, the fleet remained in that configuration until the fleet saw a major growth spurt beginning on April 15, 2014, when the Nike-class HMS Artemis formed in San Francisco, California, under the command of CAPTSGSir Thomas Marrone, KR. In Oregon, the Agamemnon-class battlecruiserHMS Black Rose commissioned on April 19th at NorWesCon, under the command of CAPTJG James Sena. Shortly afterwards during BayCon 2014 on Memorial Day Weekend, HMS Wolf formed in the California Central Valley, under the command of then-CAPTJG James Jones. Less than a month later, Task Group 91.1 was formed under the command of Sir Thomas, with Artemis as his flagship.

Black Rose and Truculent's efforts led to major growth in the Pacific Northwest, with HMS Andromeda (Everett, WA) and HMS Helen (Hillsboro, OR) commissioning in October. These two new battlecruisers helped to form Battlecruiser Squadron 96 as a result, with Black Rose and Helen forming one division (BatCruDiv 961), while Truculent and Andromeda formed the other (BatCruDiv 962).

2015 has seen more expansion, especially with the first vessel to launch in British Columbia during February, HMS Callisto under the command of CAPT Jenni Merrifield, GSN. Callisto joined BatCruDiv 962 upon commissioning. BayCon saw another vessel launching in May, with the first CLAC in Tenth Fleet to form, HMS Cerberus, under Captain Jones' command, spinning off from his former command, Wolf. In June, the Kamerling-classlight cruiserHMS Earsidh Kamerling launched in southeastern Washington under the command of CDR Terry Banta, and joined BatCruDiv 961 as a screening element. The following month, HMLAC Cochrane launched in San Diego under the command of LTJG Thomas Grellner, joining Task Group 91.1. Grimalkin rejoined Tenth Fleet under the command of LTSG Tim Simpson, patrolling San Diego.

In November, Artemis upgraded to HMS Medusa under the command of CDRE Michael Garcia, becoming the very first superdreadnought in the fleet, and became the flagship of Tenth Fleet after Admiral Fontana Flats transferred her flag aboard. Later that month, HMS Seljuk and GNS Madrigal commissioned at OryCon 37 in Portland, while Merlin and Grimalkin upgraded to Artemis and Bedivere, respectively.

BatCruDiv963 formed in 2016, under the command of Madrigal 's commanding officer, CAPT Robert Demkiw, GSN. Medusa launched a pinnace in preparation for a new destroyer in Sacramento (HM Pinnace Medusa-01). HMS Hellhound was the first ship to be commissioned in 2016, under the command of LCDR Sir Mark Gledhill, KE, expanding the British Columbia presence from two ships to three. HMS Chainshot commissioned at BayCon 2016, under the command of then-CDR Sir Joseph Harney, KCE, returning Medusa's pinnace back to the boat bay. In June, Hellhound joined BatCruDiv963, while Roland and Chainshot formed DesDiv231, under the command of CDR Jack Yeager. Wolf and Cerberus merged to form HMS Thunderer in July, under the command of CAPTJG Sonja Thiede. GNS Randolph Candless commissioned in early August under the command of CAPT Aaron Davis, GSN. Artemis and Randolph Candless formed BatCruDiv 921 under the command of CAPTSG Beilby. During August, Roland and Chainshot upgraded to Superdreadnoughts, commissioning HMS Intractable and HMS Revenge, respectively.

Battle Squadron 2 formed in early September 2016, under the command of CDRE Sir Joseph Harney, with subordinate echelon forces in Battle Division 201 (Medusa and Intractable) and Battle Division 202 (Thunderer and Revenge). Later that month, Madrigal and Hellhound upgraded to the Superdreadnought GNS Jason Mueller and Light Cruiser HMS Avalon, respectively. As a result, BatCruDiv 963 was dissolved, and both vessels along with Callisto were placed on detached duty within Tenth Fleet.